William loots bessolo



W. L. BESSOLO.A

QUICK ADJUSTABLE WRENCH.

APPLICATION man MAY s. 1919.

1HE coLUIlIA NAMIAPM C0 Patented Oct. 28, 1919.

UNITED STATES PATENT OFFICE.

WILLIAM LOUIS BESSOLO, 0F SAN DIEGO, CALIFORNIA` QUICK-ADJUSTABLEWRENCH.

Specification of Letters Patent.

Patented Oct. 28, 1919.

Application led May 6, 1919. Serial No. 295,046,

sion is made for various adjustments, myl

object being the provision of a strong powerful and durable wrench whichwill at the same time be compartively simple and inexpensive.

These objects I preferably carry out` by means of a construction which Iwill now describe in connection with the' accompanying drawing, forminga part of this specification, and wherein Figure 1 is an elevation of myimproved wrench, the handle portion of which is partly broken away andin section.

Fig. 2 is a vertical longitudinal section through the upper portion ofthe wrench;

Fig. 3 is a horizontal section taken substantially on line 3 3 of Fig.2, and

Fig. 4 is a similar View taken substantially on line 4-4 of Fig. 1.

eferring now to these figures, my invention proposes a construction inwhich both of the engaging jaws l0 and 11 are adjustable, and in which arigid shank 12 is securely connected by rivets, bolts, or otherfastening means, at one end to an adjusting bracket 13 in a recess ofwhich is seated a milled nut 14 'engaging the threaded portion 15 of theshank 16 of the' jaw 10, which shank extends through conformableopenings of the bracket 13, so as to thus adjust the jaw l0 with respectto the jaw 11.

The bracket 13 has an opening at one side parallel to the shank 12through which a second shank 17 extends, this shank projecting parallelwith the main rigid shank 12 and being pivotally connected at 18 at itsouter end to the movable jaw 11, so that by shifting the movable shank17 longitudinally, the movable jaw 11 which has a sliding connectionupon the shank 16 of jaw 10, may be adjusted toward and away from thelatter jaw.

The other end of the main rigid shank l2 is extended longitudinallythrough a handle 19, to which it is secured by rivets or bolts, lorother fastening members, at 20, theV extremity of said fixed shank 12projecting beyond the handle as seen in Fig.

1, and being threaded as at 21 for the reception of a knurled adjustingnut 22.

The handle 19, like the adjusting bracket 13, has a longitudinal`opening parallel to the shank 12, through which the movable shank 17extends, the extremity thereof normally projecting slightly beyond theinner end of. the handle and into the path of movement of the nut 22longitudinally of the shank 12, so that when the nut is screwed inwardlyupon the threaded portion 2,1 of the rigid shank, it will engage thefree end of the movable shank 17 and shift the latter and the movablejaw 11 toward the jaw 10.

Thus in applying my improved wrench to an object, the jaws are firstadjusted so far as possible to the size of the object, through theadjustment of the jaw 10 and the turning of the adjusting nut 14 forthis purpose, and when adjusted to approximately the size of the object,the operator may create the desired pressure upon the obj ect by turningthe nut 22 which will force the j awy 11 toward the jaw 10, and thusinto snug pressure against the object.

It is thus obvious that my invention provides for the ready adjustmentof both of the jaws and includes a strong durable arrangement which willbe at once simple, inexpensive and eiiicient in use.

I claim:

1. A wrench having a main fixed shank threaded at one end and providedwith a laterally projecting bearing at its opposite end, a movable shankadjustable through said bearing and parallel to the Vmain shank, a jawcarried by said movable shank, a second shank adjustable through saidbearing and extending parallel with and along the main shank, a jawcarried by said last named movable shank and opposing the first jaw, anadjustable nut in the said bearing of the main shank for ,adjusting thefirst mentioned movable shank, and a nut screwing on the threadedopposite end of the main shank and engaging the free end of the secondmovable shank as described.

2. A wrench comprising a main fixed shank, a pair of movable Shanksparalleling the main shank at relatively opposite sides thereof, jawscarried by said movable shanks, a bearing at one end of the main shankthrough which the movable shanks are extended, an adjusting membersupported in the bearing for adjusting one of the movable shanks, theother of said movable Shanks extending for approximately the full lengthof the main shank and means adjustable at the relatively opposite end ofthe main shank and engaging the adjacent end of the last mentionedmovable shank to adjust the latter. 4

3. A Wrench having a main xed shank rovided with a handle at one endbeyond which the adjacent extremity of the shank projects and isthreaded, said handle having a longitudinal opening paralleling the mainshank, a jan beyond the opposite end of the said shank, a second javvmovable With respect to said first jaW, a shank connected to said secondjaw and paralleling the main shank and extending through the said handleopening, and an adjusting nut upon the Y threaded portion of the mainshank for engageinent with the free end of the shank of said movablejaw, for the purpose described.

4. A Wrench having a main ixed shank provided with a handle at one endbeyond which the adjacent extremity of the shank projects and isthreaded, said handle having a longitudinal opening paralleling the mainshank, a j aiv beyond the opposite end of the said shank, a second jawmovable with respect to' said first jaw, a shank connected to saidsecond jaw and paralleling the main shank and extending through the saidhandle openino', an adjusting nut upon the threaded portion of the mainshank for engagement with the free end of the shank of said movable jaw,said main shank having an adjusting bracket adjacent to the movablejavv, a shank with which the first named jaw is rigid, extending throughthe said adjusting bracket and provided With a threaded portion, and anadjusting nut supported by the said adjusting bracket and engaging thethreaded portion of the last named shank, for the purpose described.

WILLIAM LOUIS BESSOLO.

Gopies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

